Antique Burrough Mainframe computer (5500?) 40 boards with motherboard

Description

Vintage Burrough Mainframe computer (incomplete).
I think it's a 5500 mainboard with 40 various plug-in boards.
It actually came in complete with a cabinet and monitor, but everything got thrown away
except for the mainboard and plug-ins.
Probably has more than an ounce of gold on all these boards and chips!
If you need a breakdown of plug-ins, it could be arranged.
You get what you see - mainboard with 38 plugged-in boards and 2 loose boards.
No warranty, of course, but everything is clean and was yanked out of a complete system.
No returns. No refunds. What you see is what you get, no more, no less.
No international shipping through Ebay, sorry. Thank you.